8/12/2019 2006eco_14_e

1/214

Business Activities and Environmental ImpactIn addition to measuring quantitatively the relationship between business activities and the environment and understanding their

environmental impact, Komatsu has formulated medium- and long-term objectives and is implementing measures that will

reduce environmental impacts.

The K omatsu G roup procures various parts and materials and,

through the manufacturing process, utilizes natural resources, includ-

ing raw materials, water, energy, and chemical substances, among

others, to provide products to its customers. Such business activities

result in environmental impact at each stage in the process.

The Komatsu G roup will continue to provide more highly value-

added products and services while at the same time it seeks to

understand the environmental impacts resulting from its business

activities, formulate its medium- and long-term objectives, and imple-

ment measures to reduce such impacts.

Development and Design

Environment & Economy

LC A design

M edium-term target of

development of environmental

technology

Development and Design

Use in other

industrial

sectors

Hazardous waste manifests

Noise and

vibration

Input

Output

Direct Materials

Steel 423,000 t*1

Indirect Materials

P aints 1,789 t*2

Lubricants 11,481kR

Energies

Electricity 1,136 G Wh

Heavy oil A 27,000 kR

K erosene 21,000 kR

Light oil 10,000 kR

Natural gas 13million m3N

LP G 7,000 t

G asoline 500 kR

Coke 8,000 t

Water Resources

G roundwater 8.2 million m3

Industrial water 4.1 million m3

Supply water 1.0 million m3

Procurement of Materials(Centralized purchasing)

G reen procurement

Manufacturing(33 Komatsu G roup Manufacturing Facilities in J apa n a nd Overseas )

M itigation of global warming (energy

conservation)

R eduction of waste (zero emissions)

Environmental risk management

Elimination of organic chemical substances*2

Full phase-out of organic chlorine-based

cleaning fluids*3

Product

P roduct weight

(construction

equipment only)*1

593,000 t

Environmenta l Risks

(Air, s oil and ground wa ter pollution)

M easures for underground oil tanks C ompleted*2

Storage for PC B transformers 589units*3

G roundwater observation wells 106wells*3

C ompany on-site landfills C losed

Waste

Total amount generated 149,000 t*3

Substances under the Pollutant Release and

Transfer Register (PRTR) law 524.4 t*3

Waste RecyclingRecycling volume 80,000 t*3

Was te Dispos al

Waste materials disposed by subcontractor

69,000 t*3

(C ompany on-site landfill of waste materials

0 t)

Atmospheric Disc harges

C O 2 704,000 t-C O 2

SO x 185 t

NO x 664 t

Substances under

the P RTR law 948.6 t*3

Water-base d Discharges

Wastewater 9.6 million m3 *3

BO D emissions 98 t*3

C O D emissions 73 t*3

Substances under the PR TR law

(public water areas) 3.7 t*3

Substances under the PRTR law (sewerage) 10.3 t*3

Environmental Impact Resulting from Business Act ivities of Komatsu Group Companies, including Overseas Facilities (FY2005)

Business Activities and Environmental Impact

CO 2 emissions: Figures for power and heavy oil (see Energy section of Input column) are calculated using the C O 2 coefficient in each area (in Japan, specified in the M inistry ofthe Environment of Japans 1999 calculation guidelines based on the Law C oncerning the Promotion of the M easures to Cope with G lobal Warning).

SO x emissions: Calculated by multiplying S content by percentage (based on element tables of suppliers) by the volumes of heavy oil, kerosene, light oil, and coke.

NO x emissions: Calculated by multiplying the nitrogen oxide emissions units (obtained at each K omatsu facility) by the heavy oil, kerosene, light oil, natural gas, and LPG used.

Calculated by the content ratio of specific chemical substances contained in indirect materials multiplied by the d ischarge or transfer rate. T his calculation isbased on the PR TR Law, which was designed to mandate the disclosure of the volume of specific chemical substances released into the environment to pro-mote the management of such substances.

Emissions and transferof substances coveredby the PR TR Law:

8/12/2019 2006eco_14_e

2/215

Waste oil

products

Waste

disposal

R euse of products

R euse of parts

Use in other

industrial sectorsR ecycling conducted

at oil manufacturers

Recycling of Materials

(O utsourcing)

Noise and

vibration

nergies

ght oil19,300 kR*4

Packaging

S teel 5, 496 t*4

R esins 391 t*4

Paper 1,813 t*4

Energies

Electricity, fuel

Indirect Materials, Oils

Energies

Fuel

Indirect Materials, OilsEnergies

Fuel, electricity

Logistics

C O 2reductions in logistics

Improvement of transport

efficiency

Improvement of packing m aterial

Sales and Services

Provision of environment-friendly

products and services

C reation and operation of a

transaction network for

remanufactured parts, materials,

and components

Use

Reduction of environmental

impact during the product

usage stage

Provision of solutions for

customers environmental

activities

Promotion of energy-

conserving operation

Recovery andDisassembly

P romotion of Reman, in

which used parts, materials,

and components are recovered,

remanufactured, and supplied

back to the market

Atmosp heric Discha rges

C O 2 50,400 t-C O 2*4Atmospheric Discha rges

C O 2

Atmospheric

Discharges

C O 2, N O x, diesel

particulate matter

Atmospheric Discha rges

C O 2

Hazardous

waste manifests

R eturnable

pallets

Environmental Impact Indicators and Environmental Accounting, Broken Down by Region

Energies Water Resources CO2 Waste Environmental Accounting (Expenses )

12

8

4

0

(millionG J)

Japan Asia(excluding

Japan)

TheAmericas

Europe

10.5

2.1

1.10.5

12

8

4

0

(millionm3)

211.2

1.8

0.3 0.1Japan Asia

(excludingJapan)

TheAmericas

Europe

600

400

200

0

(1,000 t)

479.1

137.7

61.726.1

Japan Asia(excluding

Japan)

TheAmericas

Europe

70

6050

40

30

20

10

0

R ecycled amount

Disposal amount

(1,000 t)

5 4

60.1

25.4

53.1

10.4

Japan Asia(excluding

Japan)

TheAmericas

Europe

20,000

15,000

10,000

5,000

0

(millionyen)

Japan Asia(excluding

Japan)

TheAmericas

Europe

18,310

550

2,5901,010

Coverage of Data*1 R elated to domestic construction machinery manufacturing (excluding K omatsu Zenoah)*2 K omatsu manufacturing facilities*3 K omatsu G roups domestic manufacturing facilities*4 Logistics from procurement to sales related to domestic construction machinery